Math, asked by khayeb05, 11 months ago

Can I asked how to compute a polygon with 27 diagonals using this formula given by our professor
d=n/2(n-3)

Answers

Answered by Anonymous
1
Hey mate,

Just plug in the value,

27×2 = n^2 - 3n

n^2 - 3n - 54 = 0

n^2 - 9n + 6n - 54 = 0

n(n-9) +6 (n-9) = 0

n = -6 or 9

can't be negative so = 9

hope this helps you out!
Similar questions